Shikaku


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Shikaku (also known as Rectangles) is a logic puzzle with simple rules and challenging solutions.

The rules are simple. You have to divide the grid into rectangular and square pieces such that each piece contains exactly one number, and that number represents the area of the rectangle.

Click and drag to draw a rectangle. To remove lines use the right mouse button or hold the Ctrl or the Shift key.

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Shikaku


5x5 Shikaku | 7x7 Shikaku | 10x10 Shikaku | 15x15 Shikaku | 20x20 Shikaku | 25x25 Shikaku

This Month
1.demian2
43
00:03.79
2.sfumato
112
00:05.79
3.qobi
94
00:05.90
4.vowels
77
00:06.26
5.Jones00:06.94
6.Another00:07.57
7.MadraMor
85
00:09.61
8.GeorgPfleger
61
00:09.89
9.SirDiscalot
25
00:11.12
10.BlueOcarina
41
00:11.32
11.suckitgreenboii00:11.49
12.Alien94400:12.25
13.Felix66600:12.31
14.bestofriendo
17
00:13.48
15.tetraxile
23
00:13.88
16.gabarko00:13.96
17.Fedig
17
00:14.24
18.TashiroMiraki
82
00:14.51
19.Dorice
92
00:14.69
20.Crash200500:16.11
This Week
1.Another00:07.57
2.GeorgPfleger
61
00:09.89
3.BlueOcarina
41
00:11.69
4.Crash200500:16.11
5.Caaaaaaaandy00:16.85
6.Rhododendron
7
00:17.55
7.ali2tehrani00:36.80
8.Yanqui
20
01:17.19
9.TQ-V85Sn
15
01:48.00
10.suckitgreenboii35:36.78
11.--- empty -----:--
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
Today
1.Another00:08.80
2.GeorgPfleger
61
00:09.89
3.BlueOcarina
41
00:14.28
4.--- empty -----:--
5.--- empty -----:--
6.--- empty -----:--
7.--- empty -----:--
8.--- empty -----:--
9.--- empty -----:--
10.--- empty -----:--
11.--- empty -----:--
12.--- empty -----:--
13.--- empty -----:--
14.--- empty -----:--
15.--- empty -----:--
16.--- empty -----:--
17.--- empty -----:--
18.--- empty -----:--
19.--- empty -----:--
20.--- empty -----:--
MO3
1.demian2
43
00:04.66
2.sfumato
112
00:07.23
3.Kaitzschu
84
00:07.63
4.vowels
77
00:07.68
5.arcer
68
00:07.73
6.qobi
94
00:08.14
7.savebog
11
00:08.85
8.million
48
00:08.98
9.ichigo
26
00:09.11
10.SirDiscalot
25
00:09.52
AO5
1.demian2
43
00:04.92
2.sfumato
112
00:07.21
3.vowels
77
00:08.39
4.ichigo
26
00:09.01
5.qobi
94
00:09.09
6.Kaitzschu
84
00:09.35
7.arcer
68
00:09.62
8.savebog
11
00:09.64
9.tuberculosis
21
00:10.30
10.million
48
00:10.82
AO12
1.demian2
43
00:06.31
2.sfumato
112
00:08.68
3.vowels
77
00:09.68
4.qobi
94
00:10.23
5.arcer
68
00:10.68
6.ichigo
26
00:11.29
7.Andy100
57
00:12.35
8.Geras
44
00:12.47
9.Fastfaxer
92
00:12.76
10.Kaitzschu
84
00:12.88
Robots / programmatic solversinfo  
1.tlstyer
1314
00:00.009
2.Charlie Li
60
00:00.707
3.--- empty -----:--

* MO3 - Mean of 3. The average of 3 consecutive times.
AO5 - Average of 5. The average of 5 consecutive times ignoring the highest and the lowest.
AO12 - Average of 12. The average of 12 consecutive times ignoring the highest and the lowest.
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2021-11-27 10:37:18

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